BioSilk Leave-In Hair Treatment Just $7.40 Shipped on Amazon (Reg. $21)

By Erika | Junior Content Manager

Oct 28, 2026 @ 12:40 PM MDT

As an Amazon Associate, Hip2Save earns a small commission from qualifying purchases in this post. Amazon prices and promotions are accurate at the time of posting and subject to change. Read our full disclosure policy here.

Head over to Amazon where you can grab this BioSilk Silk Therapy Leave-In Hair Treatment 2.26oz Bottle for just $7.40 shipped or less (regularly $21) when you opt to Subscribe & Save!

BioSilk Leave-In Hair Treatment 2.26oz $7.40 (reg. $21)
Opt to Subscribe & Save (up to 5% off + free shipping w/ Prime)
Final cost $7.40 shipped or $7.03 shipped (5% off)!

*Compare to $19.99 from Walgreens

Note that unlike typical Subscribe & Save orders, no additional discount will be given unless you have five or more subscriptions.

This lightweight leave-in treatment helps smooth frizz, add shine, and strengthen damaged hair without weighing it down! It’s made with silk proteins and can be used on wet or dry hair to help detangle, condition, and protect strands from heat damage.

Try this DIY 2-ingredient hair detangler spray!

About the writer:

Erika has a Bachelor’s Degree in Anthropology from Sonoma State University and 10 years of writing experience from various deal sites including Hip2Save.